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Finding the Fourth Proportional to 66,472.19, 99,686.71 and 22,087.03

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Solution

The fourth proportional to 66,472.19, 99,686.71 and 22,087.03 is: 33,123.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,472.19 : 99,686.71 = 22,087.03 : x
  2. Step 2: Convert to fraction form
    66,472.19/99,686.71 = 22,087.03/x
  3. Step 3: Cross multiply
    66,472.19x = 99,686.71 × 22,087.03
  4. Step 4: Simplify right side
    66,472.19x = 2,201,783,354.37
  5. Step 5: Solve for x
    x = 2,201,783,354.37/66,472.19
  6. Step 6: Final answer
    x = 33,123.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.